Question

a random sample of 77 women resulted in blood pressure levels with SD of 14.2. A...

a random sample of 77 women resulted in blood pressure levels with SD of 14.2. A random sample of 67 men resulted in blood pressure levels with SD of 17.7. use a 0.05 significance level and the critical value method to test the claim that blood pressure levels for women vary more than blood pressure levels for men.

Homework Answers

Answer #1

F test hypothesis calculation.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A random sample of 16 women resulted in blood pressure levels with a standard deviation of...
A random sample of 16 women resulted in blood pressure levels with a standard deviation of 22.7 mm Hg. A random sample of 17 men resulted in blood pressure levels with a standard deviation of 20.1 mm Hg. Use a 0.05 significance level to test the claim that blood pressure for women vary more than blood pressure levels for men.
In a random sample of 360 women, 65% favored stricter gun control laws. In a random...
In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. Test the claim that the proportion of women favoring stricter gun control is higher than the proportion of men favoring stricter gun control. Use a significance level of 0.05. The test statistic is:    (rounded to 2 decimal places) The p-value is:   (rounded to 4 decimal places) The Conclusion
In a random sample of 360 women, 65% favored stricter gun control laws. In a random...
In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. Test the claim that the proportion of women favoring stricter gun control is higher than the proportion of men favoring stricter gun control. Use a significance level of 0.05. Test and CI for Two Proportions Sample X N Sample p 1 234 360 0.65 2 132 220 0.60 Difference = p (1) - p...
A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure,...
A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure, measured in mm Hg, by following a particular diet. To test the claim, she conducts a controlled experiment with the following data:      Treatment Group Control Group _ Sample mean 120.5 149.3   Sample SD 17.4 30.2 Sample size 101 105 Use this data and a significance level of 0.01 to test the claim that the treatment group is from a population with a smaller...
A recent study was done comparing the IQ scores of women and men. In a sample...
A recent study was done comparing the IQ scores of women and men. In a sample of 19 women, the average IQ score was 101.6 with a sample standard deviation of 7.8, and for a sample of 12 men, the average IQ score was 102.2 with a sample standard deviation of 9.5. Use a 0.01 level of significance to test the claim that the average IQ score for women and men is the same. Show step by step: critical value,...
Cholesterol: An article in the Archives of Internal Medicine reported that in a sample of 264...
Cholesterol: An article in the Archives of Internal Medicine reported that in a sample of 264 men, 45 had elevated total cholesterol levels (more than 200 milligrams per deciliter). In a sample of 247 women, 62 had elevated cholesterol levels. Can you conclude that the proportion of people with elevated cholesterol levels differs between men and women? Let p1 denote the proportion of men with elevated cholesterol levels and let p2 denote the proportion of women with elevated cholesterol levels....
A recent study report that in a random sample of 248 women, 58 had changed their...
A recent study report that in a random sample of 248 women, 58 had changed their political affiliation since the last election. It also reported that 120 in a random sample of 387 men had changed political affiliation. The researchers would like to know if these data provide convincing evidence that the proportion of changing political affiliation is greater for men than for women. a. State the hypotheses of interest b. identify the appropriate test and verify the condition that...
The efficacy of salt-free diets for controlling high blood pressure is studied for a sample of...
The efficacy of salt-free diets for controlling high blood pressure is studied for a sample of 8 patients. Each has their diastolic blood pressure measured before going on the diet and after. The data appear below: patient: 1 2 3 4 5 6  7 8 sample 1- Before: 93 106 90 93 102 95 88 110 sample 2- After: 92 102 89 92 101 96 87 105 Assume the differences in blood pressure fit a normal distribution. Use the matched pairs...
In a random sample of 360 women, 65% favored stricter gun control laws. In a random...
In a random sample of 360 women, 65% favored stricter gun control laws. In a random sample of 220 men, 60% favored stricter gun control laws. Test the claim that the proportion of women favoring stricter gun control laws is higher than the proportion of men favoring stricter gun control. a) Write the claim and its opposite in symbolic form using the proper notation. b) Identify the Null and the Alternative hypotheses using symbolic form. c) Identify the significance level....
A researcher was interested in comparing the amount of time spent watching television by women and...
A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows: Women        Men   _ Sample mean      11.9 hrs      16.9 hrs Sample SD         4.1 hrs        4.8 hrs Sample size            14                17 Use this data and a 0.05 significance...